A measurement access through the diffuser plenum for pressure measurement and aerosol test

Easy filter change and cleaning through the openable diffuser panel

Reduced installation space requirement due to low unit height

Easy installation with fixing brackets

Adapted for installation in modular suspended ceilings

Filters E10, H13 and H14 available as standard

Powder coated finishing, standard colour RAL9010

ACCESORIES

E10, H13 and H14 with foamed polyurethane gasket

H14 with gel gasket

Filters should be ordered separately

Horizontal supply air diffuser Halton DHC with HEPA filter for hospital and clean room environments to be installed flush to the ceiling or to the wall.

Diffuser is adapted for installation in modular suspended ceiling. Diffuser frame will adapt to suite different ceiling types. The diffuser is installed either fast into ceiling/wall or hanged from the ceiling using movable fixing parts.

Diffuser casing is made of galvanized steel and powder painted. The inside of the diffuser is smooth to enable easy cleaning and free from grooves to prevent collection of impurities. Plenum is equipped with an internal measurement tap for filter pressure drop and aerosol test.

Easy filter change and cleaning of the diffuser and ductwork through open able diffuser panel. Integral guides shall enable exact positioning of the filter to ensure complete thigness.

HEPA filter with aluminium frame and cold molded polyurethane or gel gasket according to EN 1822 is supplied with individual test certificate (H14).

Technical values

Installation

Halton DHC

Front panel

Filter

Plenum

Fixing brackets

The diffuser is connected directly to the duct by screwing or by riveting. The connection is sealed as leakproof with an appropriate method. The diffuser is installed either fast into or hanged from the ceiling with M6 (recommended minimum) drop rods using fixing brackets. Alternatively the diffuser is installed fast to the wall construction. It will not be allowed to drill or make any holes to the diffuser plenum.

Open the front panel be gently pulling from the openings in the front panel. Front panel will hang from the hinges. Detach the panel from the hinges.Clean the diffuser plenum before the filter installation.Install the filter into diffuser. The guide pins ensure the exact location of the filter. Turn the brackets below the filter and tighten them evenly.

Scan the filter for bypass leakages and correct the tightness, if necessary.Reattach the front panel by pushing it until the springs lock.

Adjustment

Halton DHC

The airflow adjustment and shut off will be made with Halton PTS/A damper in the ductwork (tightness class 4 EN 1751). The pressure drop of the clean filter can be used as a reference for airflow rate with a reasonable accuracy. If there is no measurement unit available, Halton MSA or MSD may be used as measurement unit.

Constant or variable airflow & shut off

The airflow is adjusted with the aid of electrical airflow management damper Halton HFB/G in the ductwork. Depending on the application the damper is ordered either with constant or variable air volume settings. See details of ordering from Halton HFB documentation.

Servicing

Halton DHC

Close the airflow with the shut off damper. Detach the front panel by gently pulling from the openings in the front panel. The front panel can also be removed to further ease the filter change. Remove the filter from the diffuser box by unlocking the brackets and turning the fasteners to the side.

Clean carefully the diffuser and housing with a suitable method. Install the new filter & lock it with the fasteners and tighten the screws. Scan the filter for bypass leakages and correct the tightness, if necessary.

Technical specification

Horizontal supply air diffuser Halton DHC with HEPA filter for hospital and clean room environments to be installed flush to the ceiling or to the wall.

Diffuser is adapted for installation in modular suspended ceiling. Diffuser frame will adapt to suite different ceiling types. The diffuser is installed either fast into ceiling/wall or hanged from the ceiling using movable fixing parts.

Diffuser casing is made of galvanized steel and powder painted. The inside of the diffuser is smooth to enable easy cleaning and free from grooves to prevent collection of impurities. Plenum is equipped with an internal measurement tap for filter pressure drop and aerosol test.

Easy filter change and cleaning of the diffuser and ductwork through open able diffuser panel. Integral guides shall enable exact positioning of the filter to ensure complete thigness.

HEPA filter with aluminium frame and cold molded polyurethane or gel gasket according to EN 1822 is supplied with individual test certificate (H14).

Halton is passionate about indoor environments. We offer business-enhancing products, systems, and services for comfortable, energy-efficient, and safe environments to customers who value people's wellbeing. Halton is involved from target-setting to facility use and focuses on creating positive indoor environment experiences for people.